Fixes the change of style when the text-field grabs the keyboard focus.

Fixes the change of style when the text-field grabs the keyboard focus.

* The text field is not in edit mode.
  - Double tap to select a word. The text-field grabs the focus but it
  shouldn't change to edit mode, it should select the word.
  - Tap to edit, tap in a different place to make the grab handle to appear.
  When the text-field grabs the focus it goes bak to edit mode and the
  grab handle dissapears.

Change-Id: I9dd055df25a8d358b0950faa76ab155affcce7cb
Signed-off-by: v.cebollada <v.cebollada@samsung.com>